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OVT-80K Portable Insulating Oil Dielectric Strength Tester
OVT-80K Digital Intelligent Portable Insulating Oil Dielectric Strength Tester with 80kV Adjustable Output, Single-Cup Compact Structure, Microprocessor Control, Multi-Standard Test Programs, for Substation On-Site Insulating Oil Quick Detection.
- Description
- Specifications
- Applications
- Advantages
- FAQ
- Recommended Products
Description
The OVT-80K is a professional-grade, field-optimized portable 80kV fully automatic insulating oil dielectric strength testerexclusively designed for on-site quick detection of insulating oil insulation performance in substations, power plants and industrial enterprises. It fully complies with GB/T 507-2002, DL/T 846.7-2016 and IEC 60156:1995 standards, adopting an innovative single-cup compact structure that combines high performance with portability, making it ideal for field inspection and emergency troubleshooting.
The instrument features an advanced microprocessor control system that ensures fully automatic operation, completing the entire test process including voltage rise, stirring, standing, breakdown detection, voltage drop, average calculation and report printing without manual intervention. Its high-precision high-voltage sampling technology delivers 0.1kV voltage resolution and ±2% measurement accuracy, with a breakdown response time of less than 1ms, ensuring accurate and reliable test results even in harsh field environments.
Specifications
| Parameter | Specification |
|---|---|
| System Parameters | |
| Compliance Standard | GB/T 507-2002, DL/T 846.7-2016, IEC 60156:1995, ASTM D877-20 |
| Test Principle | Power frequency dielectric strength test (breakdown voltage method) |
| Test Cups | 1 independent test cup (2.5mm electrode gap) |
| Operation Mode | Fully automatic one-click test / Manual test |
| Display | 5-inch 800×480 color touch screen |
| Data Storage | 1000 groups test results |
| Data Export | USB 2.0, RS232 |
| Printer | High-speed thermal printer, 58mm paper width |
| Electrical Parameters | |
| Output Voltage Range | 0 ~ 80kV AC (50Hz) continuous adjustable |
| Voltage Resolution | 0.1kV |
| Measurement Accuracy | ±2% of reading |
| Waveform Distortion Rate | ≤3% |
| Breakdown Response Time | ≤1ms |
| Boost Rate | 0.5kV/s ~ 5kV/s adjustable (standard 2kV/s) |
| Maximum Output Current | 10mA |
| Transformer Capacity | 1.0kVA |
| Control Parameters | |
| Stirring Time | 0 ~ 99s adjustable |
| Standing Time | 0 ~ 999s adjustable |
| Test Times | 1 ~ 10 times adjustable (standard 6 times) |
| Boost Interval | 0 ~ 999s adjustable |
| Standard Programs | GB/T 507, IEC 60156, ASTM D877 |
| Custom Programs | Yes (user-defined parameters) |
| Safety Protection | |
| Over-voltage Protection | Yes (85kV automatic power off) |
| Over-current Protection | Yes (12mA automatic power off) |
| Door Interlock Protection | Yes (door open → high voltage cut off) |
| Automatic Discharge | Yes (after test completion) |
| Emergency Stop | Yes |
| Power Supply | |
| Input Power | AC 220V±10%, 50Hz±1Hz |
| Power Consumption | ≤150W (average), ≤1000W (peak) |
| Physical Parameters | |
| Dimensions | 420×320×300mm (L×W×H) |
| Weight | ~15kg (including all components) |
| Housing | Cold-rolled steel with electrostatic spraying |
| Protection Grade | IP40 |
| Operating Temperature | -10℃ ~ +50℃ |
| Storage Temperature | -20℃ ~ +60℃ |
| Humidity | ≤85% RH (non-condensing) |
| Altitude | ≤2000m (customizable for higher altitudes) |
Applications
Core Test Objects
- Power industry oils: Transformer oil, switch oil, capacitor oil, cable oil
- Oil-filled equipment: Power transformers, instrument transformers, circuit breakers, reactors
Typical Usage Scenarios
- Power companies: Substation on-site inspection, emergency maintenance, fault diagnosis
- Power plants: Routine on-site testing of power generation equipment, emergency troubleshooting
- Industrial enterprises: Internal power equipment on-site testing, maintenance and inspection
- Oil treatment companies: On-site oil quality assessment, oil treatment effect verification
- Third-party testing institutions: On-site testing services, emergency response testing
Advantages
Compliance with Latest International Standards
Fully meets GB/T 507-2002 Chinese national standard, DL/T 846.7-2016 industry standard and IEC 60156 international standard → test results are recognized worldwide
Industry-Leading Portable Design
Total weight only 15kg, integrated suitcase design, easy to carry to remote sites → ideal for on-site inspection and emergency maintenance
High-Precision Measurement & Fast Response
0.1kV voltage resolution, ±2% measurement accuracy, ≤1ms breakdown response time → ensures accurate and reliable test results in harsh field environments
Built-In Multi-Standard Test Programs
Pre-installed multiple international standard procedures, supports custom parameter settings → meets different test requirements and standards
Comprehensive Safety Protection System
Multiple safety protections including door interlock and automatic discharge → ensures operator safety during high-voltage field testing
FAQ
Q: How long does a typical test take?
A: A complete test including 6 breakdown tests, stirring and standing takes approximately 15~20 minutes. The quick test mode can complete a single test in less than 10 minutes, which is very suitable for on-site emergency testing.
Q: Can it be used in harsh field environments?
A: Yes. OVT-80K is specially designed for field use. It features a rugged industrial design, wide operating temperature range (-10℃ ~ +50℃), and comprehensive anti-interference measures. It can work reliably in various harsh field environments including high temperature, low temperature, dust and humidity.
Q: What safety measures are in place to protect operators during field testing?
A: OVT-80K is equipped with a comprehensive safety protection system:
- Door interlock: Automatically cuts off high-voltage output when the test chamber door is opened
- Automatic discharge: Automatically discharges residual voltage after test completion
- Multiple electrical protections: Over-voltage, over-current, over-load and short-circuit protection
- Emergency stop button: One-button emergency stop for any abnormal situation
- Fully enclosed high-voltage chamber: Prevents accidental contact with high-voltage parts
Q: How to calibrate the instrument?
A: The instrument can be calibrated using a standard high-voltage voltmeter. Users can connect the standard voltmeter to the high-voltage output terminal, apply different voltage levels, compare the measured values with the standard values, and adjust the calibration coefficient if necessary. The calibration procedure is simple and fast, and the instrument provides a built-in calibration wizard to guide users through the process.
